Resin anchoring agent fixing device
By designing a resin anchor fixing device including a fixing seat, a connecting seat and a base, the problems of low installation efficiency, high risk coefficient and early overflow of resin anchoring agent in the prior art are solved, and the smooth insertion and effective tightening of resin anchoring agent are achieved.
Patent Information
- Application Number
- CN202421984887.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-15
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-08-15
AI Technical Summary
In the prior art, the installation efficiency of resin anchoring agent is low and has high risk coefficient, which is difficult for workers to operate, and the resin anchoring agent is prone to overflow early when inserted into the drilling hole, affecting the fastening effect.
A resin anchoring agent fixing device is provided, including a fixing seat, a connecting seat and a base. The connecting seat is a tapered structure and can clamp the end of the resin anchoring agent. The fixing seat is in communication with the connecting seat. The outer diameter of the base is greater than the outer diameter of the fixed seat, and the connection strength is increased.
Through this device, resin anchoring agent can enter the drilling hole smoothly, avoid premature damage, ensure effective fastening of the anchor cable, improve installation efficiency and reduce the risk of worker operation.
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Figure CN222863450U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of resin anchor fixing devices, and in particular to a resin anchor fixing device. Background Art
[0002] Resin anchor is a material used in mining and construction projects. It is placed in a borehole to act between the anchor cable and the borehole to assist in tightening the anchor cable.
[0003] In the prior art, when installing vertical anchors, workers set up a temporary platform and manually put the resin anchor into the drilled hole. They need to use one hand to seal the hole to prevent the resin anchor from falling, and at the same time use the other hand to insert the anchor into the hole, thereby achieving the coordinated installation of the resin anchor and the anchor. However, this installation method is extremely inefficient and has a high risk factor, and workers are difficult to operate and are prone to injury.
[0004] In addition, when the resin anchor is inserted into the drill hole, there will be residual construction debris in the drill hole. If the worker inserts the resin anchor into the drill hole in the wrong direction, the resin anchor will rub against the inner wall of the drill hole, which will increase the probability of damage to the resin anchor jacket, thereby causing the resin anchor to overflow prematurely, affecting the tightening effect of the resin anchor on the anchor cable when the subsequent anchor cable is inserted.
[0005] Therefore, there is room for further improvement in the installation of resin anchors in the prior art. Utility Model Content
[0006] In view of this, in view of the technical problem that in the above-mentioned prior art, the resin anchor needs to be manually transported into the drill hole, and due to the large wear between the resin anchor and the inner wall of the drill hole during manual insertion, the resin anchor may overflow prematurely, affecting the tightness of the resin anchor to the anchor cable. The present application provides a resin anchor fixing device, which acts on the end of the resin anchor to protect the front end of the resin anchor, so that the resin anchor can enter the drill hole smoothly, avoids the resin anchor from being scratched prematurely when entering the drill hole, and ensures the effective tightness of the resin anchor to the anchor cable.
[0007] The present application provides a resin anchor fixing device, comprising a fixing seat, a connecting seat and a base, wherein one end of the connecting seat is connected to the fixing seat, and the other end of the connecting seat is connected to the base, and the outer diameter of the base is greater than the outer diameter of the fixing seat;
[0008] Wherein, the fixing seat is a straight cylinder structure, the connecting seat is a conical cylinder structure, and the connecting seat is connected with the fixing seat;
[0009] The fixing seat is provided with a hollow portion, and the hollow portion is opened on the side wall of the fixing seat;
[0010] The connecting seat comprises a guiding part and a connecting part, one end of the connecting part is connected to the fixing seat, the other end of the connecting part is connected to the guiding part, and the end of the guiding part away from the connecting part is connected to the base;
[0011] The outer diameter of the connecting end of the connecting portion and the fixing seat is greater than the outer diameter of the connecting end of the connecting portion and the guiding portion, and the outer side wall of the connecting portion is an arched curved surface protruding radially outward.
[0012] Compared with the prior art, the present application provides a resin anchor fixing device, which is used to fix the resin anchor so as to facilitate the delivery of the resin anchor into the drill hole, prevent the resin anchor from easily falling out of the drill hole, and facilitate the resin anchor to be fixed in the drill hole; specifically, it includes a fixing seat, a connecting seat and a base, the base and the fixing seat are respectively connected to the two ends of the connecting seat, the fixing seat and the connecting seat are both cylindrical structures, the fixing seat is communicated with the connecting seat, and the internal space of the fixing seat and the connecting seat is for the resin anchor to be inserted, wherein the connecting seat is a conical structure, which can relatively clamp the end of the resin anchor so that the connection between the resin anchor and the connecting seat is relatively tight Tightly, thereby fixing the fixing device and the resin anchor; and the outer diameter of the base is larger than the outer diameter of the fixing seat. When the resin anchor overflows from the hollow part of the fixing seat, the connection area between the base and the resin anchor is larger, which can increase the connection strength between the resin anchor and the fixing device; in particular, in the present application, the connecting seat includes a connecting part and a guide part, and the connecting part is located between the guide part and the fixing seat. The outer side wall of the connecting part protrudes radially outward and is an arc-shaped surface, which can play a buffering connection role between the fixing seat and the guide part, so that the connection between the fixing seat and the guide part is smoother, stress concentration is reduced, and resistance is reduced, so that the fixing device can smoothly enter the drill hole.
[0013] Preferably, the hollow parts are arranged in two groups, and the two groups of hollow parts are arranged on the fixing seat in an axially distributed manner;
[0014] Wherein, each group of the hollow parts includes at least two through openings, and the through openings are arranged at equal intervals.
[0015] Preferably, the outer diameter of the connecting seat near the base is L1, and the outer diameter of the connecting seat near the fixed seat is L2, wherein 2 / 5≤L1:L2≤3 / 5;
[0016] The outer diameter of the fixing seat is L3, and L2=L3.
[0017] Preferably, along the axial direction, the angle between the outer side wall of the guide portion and the axis is 10° to 30°.
[0018] Preferably, the base includes a limiting plate, and the limiting plate is a plate-shaped structure;
[0019] There are at least two limit plates, and the limit plates are connected to the outer side wall of the connecting seat at equal intervals along the circumferential direction.
[0020] Preferably, the angle between the limit plate and the axis is 90°, and the bottom of the limit plate is flush;
[0021] The distance between the end of the limiting plate away from the connecting seat and the center of the connecting seat is greater than the radius of the fixing seat.
[0022] Preferably, the number of the limit plates is 2 to 10;
[0023] The width of the free end of the limiting plate is the same as that of the fixed end, and the outer side wall of the free end of the limiting plate is an arc-shaped structure.
[0024] Preferably, a groove is provided at the bottom of the base, and the inner diameter of the groove is smaller than the outer diameter of the bottom of the connecting seat.
[0025] Preferably, the axial length of the connecting seat is H1, and the axial length of the fixing seat is H2, wherein 3 / 5≤H1:H2≤4 / 5.
[0026] Preferably, the axial length of the limiting plate is H3, wherein 1 / 25≤H3:H2≤1 / 15.
[0027] A resin anchor fixing device of the present application has at least the following technical effects:
[0028] 1. By setting the connecting part, the outer side wall of the connecting part is an arched surface protruding radially outward, so that the connection between the guide part and the fixing seat is smoother and smoother, reducing the stress concentration of the inner wall of the connection between the connecting seat and the fixing seat facing the resin anchor, avoiding tearing the protective jacket of the resin anchor, and helping to reduce the resistance of the outer side of the fixing device, so that the fixing device can smoothly enter the drill hole;
[0029] 2. By setting the angle between the outer wall of the guide part and the axis to be between 10° and 30°, the guide effect of the connecting seat is good, which can facilitate the rapid insertion of the guide part into the drill hole;
[0030] 3. By providing a groove at the bottom of the base, the material cost of the fixing device can be reduced. Moreover, when the resin fixing agent overflows, the groove can increase the connection area between the resin anchor and the connecting seat, thereby strengthening the connection strength between the resin anchor and the fixing device. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] Figure 1 The three-dimensional structure diagram of the resin anchoring agent fixing device provided in one embodiment of the present application is shown in FIG. Figure 1 ;
[0032] Figure 2The three-dimensional structure diagram of the resin anchoring agent fixing device provided in one embodiment of the present application is shown in FIG. Figure 2 ;
[0033] Figure 3 is a front view of a resin anchor fixing device provided in one embodiment of the present application;
[0034] Figure 4 is a bottom view of a resin anchor fixing device provided in one embodiment of the present application;
[0035] Figure 5 It is a schematic diagram of the three-dimensional cross-sectional structure of a resin anchor fixing device provided in one embodiment of the present application.
[0036] Reference numerals: 1. Resin anchoring agent fixing device;
[0037] 11. Fixed seat; 12. Connecting seat; 13. Base;
[0038] 111, hollow portion; 1111, through opening;
[0039] 121. connecting portion; 122. guiding portion;
[0040] 131. Limiting plate; 132. Groove. DETAILED DESCRIPTION
[0041] In order to enable those skilled in the art to better understand the technical solution of the present disclosure, the present disclosure is described in detail, clearly and completely in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present disclosure and are not used to limit the present disclosure.
[0042] In the description of this application, if there is a description of first or second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.
[0043] Those skilled in the art should understand that, in the disclosure of the present application, the orientation or positional relationship indicated by terms such as "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", and "outside" are based on the orientation or positional relationship shown in the accompanying drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present application.
[0044] The present application is further described in detail below in conjunction with the accompanying drawings. Figures 1 to 5 illustrate.
[0045] The present application provides a resin anchor fixing device 1 (hereinafter referred to as fixing device 1), which is installed at the end of the resin anchor to facilitate the delivery of the resin anchor into the drill hole, and it has a protective effect on the end of the resin anchor, which can reduce the probability of damage to the end of the resin anchor when inserting the drill hole, and can guide the resin anchor so that the resin anchor can be inserted into the drill hole more smoothly, quickly and accurately, thereby improving the installation speed and the installation efficiency of workers installing the resin anchor.
[0046] Specifically, Figures 1 to 5 As shown, the fixing device 1 of the present application includes a fixing seat 11, a connecting seat 12 and a base 13. The fixing seat 11 is a straight tube structure, and both ends of the fixing seat 11 are provided with openings; Figure 5 As shown, the connecting seat 12 is a conical cylindrical structure, and an opening is provided at the upper end of the connecting seat 12. The upper end of the connecting seat 12 is connected to the fixing seat 11, and the upper end opening of the connecting seat 12 is communicated with the lower end opening of the fixing seat 11. The internal space formed by the connecting seat 12 and the fixing seat 11 is used for inserting the resin anchor. Among them, since the connecting seat 12 is a conical structure, the connecting seat 12 has a good clamping effect on the end of the resin anchor, which can make the fixing device 1 and the resin anchor be better fixed; at the same time, the conical structure of the connecting seat 12 can also play a guiding role when the resin anchor enters the borehole, so that the resin anchor can be inserted into the borehole more smoothly, quickly and accurately, thereby improving the installation efficiency; in addition, the connecting seat 12 and the fixing seat 11 play a protective role on the end of the resin anchor, which can avoid the friction between the end of the resin anchor and the inner wall of the borehole when the resin anchor is inserted, thereby ensuring the integrity of the resin anchor before it acts with the anchor cable, which is conducive to ensuring the effective effect of the resin anchor.
[0047] Among them, Figures 1 to 3 As shown, a hollow portion 111 is provided on the fixing seat 11, and the hollow portion 111 is opened on the side wall of the fixing seat 11, so that after the resin anchor is broken through the outer jacket by the anchor cable, the resin anchor can overflow from the hollow portion 111 to the outside of the fixing device 1, so that the resin anchor can act on the outside of the fixing device 1 faster, filling the drilled hole, the fixing device 1 and the anchor cable, and then the anchor cable, the fixing device 1 and the drilled hole are better bonded together under the action of the resin anchor, which is beneficial to enhance the fastness of the connection of the anchor in the drilled hole.
[0048] Further, such as Figures 1 to 3As shown, the hollow parts 111 are arranged in two groups, and the two groups of hollow parts 111 are arranged on the fixing seat 11 along the axial direction, that is, the two groups of hollow parts 111 are arranged at intervals up and down, wherein each group of hollow parts 111 includes at least two through-holes 1111, and the through-holes 1111 are rectangular structures or circular structures or other shapes. The through-holes 1111 penetrate the outer wall of the fixing seat 11, and the through-holes 1111 are arranged at equal intervals. The through-holes 1111 are evenly distributed along the circumference of the side wall of the fixing seat 11, which can ensure the uniformity of the resin anchor when overflowing, so that the circumferential bonding effect of the resin anchor on the fixing device 1 is more uniform. In this embodiment, each group of hollow parts 111 is provided with eight through-holes 1111. In actual use, the number, size and shape of the through-holes 1111 can be reasonably set according to needs, and there is no restriction on them here.
[0049] In particular, in this application, if Figure 1 , Figure 3 As shown, the connecting seat 12 includes a guide portion 122 and a connecting portion 121, one end of the connecting portion 121 is connected to the fixed seat 11, the other end of the connecting portion 121 is connected to the guide portion 122, and the end of the guiding portion 122 away from the connecting portion 121 is connected to the base 13, that is, the connecting portion 121 acts between the guiding portion 122 and the fixed seat 11, the upper end of the connecting portion 121 is connected to the fixed seat 11, and the lower end of the connecting portion 121 is connected to the guiding portion 122. The connecting portion 121 is a cylindrical structure, and the guiding portion 122 is a conical structure. The upper and lower ends of the connecting portion 121 have openings, and the connecting portion 121 is connected to the fixed seat 11 and the guiding portion 122 respectively; wherein, as Figure 3 As shown, the outer diameter of the connecting end of the connecting portion 121 and the fixing seat 11 is larger than the outer diameter of the connecting end of the connecting portion 121 and the guiding portion 122, that is, the outer diameter of the upper end of the connecting portion 121 is larger than the outer diameter of the lower end, and the outer wall of the connecting portion 121 is an arched curved surface convex radially outward, so that the connection between the fixing seat 11 and the guiding portion 122 is relatively smooth and smooth, so that the inner wall and the outer wall of the connection between the connecting seat 12 and the fixing seat 11 are connected smoothly, avoiding sharp and protruding connections. On the one hand, it reduces the stress concentration of the inner wall of the connection between the connecting seat 12 and the fixing seat 11 facing the resin anchor, avoiding tearing of the protective jacket of the resin anchor, and on the other hand, it helps to reduce the resistance of the outer side of the fixing device 1, so that the fixing device 1 can smoothly enter the drill hole.
[0050] like Figure 3As shown, in another optional implementation of the present application, the fixing seat 11 is a straight cylinder structure, the outer diameter of the fixing seat 11 is L3, the outer diameter of the connecting seat 12 close to the base 13 is L1, and the outer diameter of the connecting seat 12 close to the fixed seat 11 is L2, that is, the outer diameter of the upper end of the connecting seat 12 is L2, and the outer diameter of the lower end of the connecting seat 12 is L1, L3=L2>L1, wherein 2 / 5≤L1:L2≤3 / 5, of course, the ratio value of L1:L2 can be any one of 0.4, 0.45, 0.5, 0.55, 0.6, thereby limiting the outer diameter ratio between the upper end and the lower end of the connecting seat 12, and limiting the conical structure of the connecting seat 12, so that the connecting seat 12 can play a better guiding role and clamping effect on the resin anchor; the ratio of L1:L2 is preferably 0.45.
[0051] like Figure 3 As shown, in another optional implementation of the present application, the axial length of the connecting seat 12 is H1, and the axial length of the fixing seat 11 is H2, wherein 3 / 5≤H1:H2≤4 / 5. Of course, the ratio of H1:H2 can be any one of 0.6, 0.65, 0.7, 0.75, and 0.8. Such a structural arrangement enables the fixing device 1 to save manufacturing materials to the best extent, while also ensuring that the resin anchor can be clamped when the length of the fixing seat 11 and the connecting seat 12 are coordinated; in this implementation, the ratio of H1:H2 is preferably 0.65.
[0052] like Figure 3 As shown, in another optional implementation of the present application, along the axial direction, the angle θ between the outer wall of the guide portion 122 and the axis is 10° to 30°, wherein the angle θ can be any one of 10°, 12°, 14°, 16°, 18°, 20°, 22°, 24°, 26°, 28°, and 30°, so that the inclination of the side wall of the guide portion 122 can ensure that the connecting seat 12 has good guiding properties while also ensuring the clamping effect of the resin anchor; in this implementation, the angle θ is preferably 18°.
[0053] In another optional implementation of the present application, the base 13 is further expanded; Figure 3 , Figure 4As shown, the base 13 is connected to the lower end of the connecting seat 12, and the outer diameter of the base 13 is L4, wherein the outer diameter of the base 13 is larger than the outer diameters of the fixing seat 11 and the connecting seat 12, that is, L4>L3 and L4>L2; in this embodiment, the outer diameter of the base 13 is set to be larger than the fixing seat 11 or the connecting seat 12, so that the outer edge of the base 13 exceeds the outer edge of the fixing seat 11 and the connecting seat 12, and the resin anchor is inserted into the fixing seat 11 and the connecting seat 12, that is, the outer edge of the base 13 exceeds the outer edge of the resin anchor. When the fixing device 1 is sleeved on the end of the resin anchor, the worker puts the resin anchor When the solidifying agent is inserted into the borehole, since the outer edge of the base 13 exceeds the outer edge of the resin anchor, the base 13 blocks the impurities on the inner wall of the borehole to prevent the impurities from contacting the outer side of the resin anchor. At the same time, the outer edge of the base 13 contacts the inner wall of the borehole first, thereby having a limiting effect on the resin anchor, which acts between the inner wall of the borehole and the outer wall of the resin anchor, and can reduce the probability of the outer wall of the resin anchor contacting the inner wall of the borehole, thereby reducing the probability of premature damage of the resin anchor when the resin anchor is inserted into the borehole, thereby improving the immediate use effectiveness of the resin anchor.
[0054] Further, such as Figures 1 to 5 As shown, the outer diameter of the base 13 includes a limit plate 131, which is a plate-like structure. There are at least two limit plates 131, and the limit plates 131 are connected to the outer wall of the connecting seat 12 at equal intervals along the circumferential direction, that is, the limit plates 131 are connected with the same center of a circle as the center, so that each limit plate 131 is umbrella-shaped after being connected; and the interval between the limit plates 131 and the limit plates 131 can allow the resin anchor to pass through, so that the resin anchor can fully contact with the limit plate 131 after overflowing, thereby increasing the connection area between the resin anchor and the limit plate 131, thereby enhancing the connection stability between the resin anchor and the fixing device 1.
[0055] The number of the limiting plates 131 is 2 to 10. In this embodiment, Figure 4 As shown, the number of the limiting plates 131 is preferably 6, and the 6 limiting plates 131 are equidistantly spaced and arranged along the circumferential direction. Figures 1 to 4 As shown, the limiting plate 131 includes a free end and a fixed end, the fixed end is the end of the limiting plate 131 connected to the connecting seat 12, and the free end is the end of the limiting plate 131 away from the connecting seat 12, wherein the width of the free end is the same as the width of the fixed end, which can ensure the structural strength of the free end of the limiting plate 131; wherein, as Figure 4As shown, the outer wall of the free end of the limit plate 131 is an arc-shaped structure, thereby ensuring that the outer edge of the corner of the free end of the limit plate 131 is relatively smooth, thereby avoiding scratches on workers when the fixing device 1 is installed on the end of the resin anchor. At the same time, it can avoid friction between the corner and the inner wall of the drill hole when the fixing device 1 enters the drill hole, thereby avoiding damage to the fixing device 1.
[0056] Further, such as Figure 3 As shown, the angle between the limit plate 131 and the axis is 90°, that is, the limit plate 131 is on the same plane as a whole, and the bottom of the limit plate 131 is flush. After the fixing device 1 enters the drill hole, the bottom of the limit plate 131 can fit the bottom of the drill hole as much as possible; Figure 3 , Figure 4 As shown, the distance between the end of the limiting plate 131 away from the connecting seat 12 and the center of the connecting seat 12 is greater than the radius of the fixing seat 11, that is, the distance between the free end of the limiting plate 131 and the center of the connecting seat 12 is greater than the radius of the fixing seat 11, so that the outer edge of the limiting plate 131 exceeds the outer edges of the fixing seat 11 and the connecting seat 12.
[0057] Further, such as Figure 2 As shown, the axial length of the limiting plate 131 is H3, wherein 1 / 25≤H3:H2≤1 / 15, and of course the ratio of H3:H2 can be any one of 0.040, 0.042, 0.44, 0.046, 0.048, 0.050, 0.052, 0.054, 0.056, 0.058, 0.06, 0.062, 0.064, 0.066, so that the limiting plate 131 can ensure that the limiting plate 131 has sufficient structural strength within a reasonable range, while also saving material costs. In this embodiment, the ratio of H3:H2 is preferably 0.050.
[0058] Further, such as Figure 1 , Figures 4 to 5 As shown, a groove 132 is provided at the bottom of the base 13. The groove 132 is circular, and the center of the groove 132 is on the axis of the fixing seat 11. The groove 132 is recessed toward the connecting seat 12. The recessed depth of the groove 132 is less than the axial thickness of the connecting plate. The setting of the groove 132 can increase the connection area between the bottom of the base 13 and the resin anchor, so that the connection stability between the resin anchor and the bottom of the base 13 is better, which is beneficial to the overall connection firmness of the resin anchor to the fixing device 1 and the drilling hole; wherein, the inner diameter of the groove 132 is smaller than the outer diameter of the bottom of the connecting seat 12, thereby ensuring the connection firmness between the limit plate 131 and the connecting seat 12.
[0059] It should be noted that the various embodiments of the present application can be arbitrarily combined into a new embodiment if the solutions do not conflict and the technical solutions can coexist.
[0060] The present application is described in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the present application and its core ideas. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.
Claims
1. A resin anchor fixing device, characterized in that: It comprises a fixing seat (11), a connecting seat (12) and a base (13), wherein one end of the connecting seat (12) is connected to the fixing seat (11), and the other end of the connecting seat (12) is connected to the base (13), and the outer diameter of the base (13) is greater than the outer diameter of the fixing seat (11); Wherein, the fixing seat (11) is a straight-cylindrical structure, the connecting seat (12) is a conical-cylindrical structure, and the connecting seat (12) is connected to the fixing seat (11); The fixing seat (11) is provided with a hollow portion (111), and the hollow portion (111) is open on the side wall of the fixing seat (11); The connecting seat (12) comprises a guiding portion (122) and a connecting portion (121), one end of the connecting portion (121) is connected to the fixing seat (11), the other end of the connecting portion (121) is connected to the guiding portion (122), and the end of the guiding portion (122) away from the connecting portion (121) is connected to the base (13); The outer diameter of the connecting end of the connecting portion (121) and the fixing seat (11) is greater than the outer diameter of the connecting end of the connecting portion (121) and the guiding portion (122), and the outer side wall of the connecting portion (121) is an arched curved surface that protrudes radially outward.
2. The resin anchor fixing device according to claim 1, characterized in that: The hollow portions (111) are arranged in two groups, and the two groups of hollow portions (111) are arranged on the fixing seat (11) in an axially distributed manner; Wherein, each group of the hollow portions (111) comprises at least two through openings (1111), and the through openings (1111) are arranged at equal intervals.
3. The resin anchor fixing device according to claim 1, characterized in that: The outer diameter of the end of the connecting seat (12) close to the base (13) is L1, and the outer diameter of the end of the connecting seat (12) close to the fixed seat (11) is L2, wherein 2 / 5≤L1:L2≤3 / 5; The outer diameter of the fixing seat (11) is L3, and L2 = L3.
4. The resin anchor fixing device according to claim 1, characterized in that: Along the axial direction, the angle between the outer side wall of the guide portion (122) and the axis is 10° to 30°.
5. The resin anchor fixing device according to claim 1, characterized in that: The base (13) comprises a limiting plate (131), and the limiting plate (131) is a plate-shaped structure; There are at least two limit plates (131), and the limit plates (131) are connected to the outer side wall of the connection seat (12) at equal intervals along the circumferential direction.
6. The resin anchor fixing device according to claim 5, characterized in that: The angle between the limiting plate (131) and the axis is 90°, and the bottom of the limiting plate (131) is flush; The distance between the end of the limiting plate (131) away from the connecting seat (12) and the center of the connecting seat (12) is greater than the radius of the fixing seat (11).
7. The resin anchor fixing device according to claim 5, characterized in that: The number of the limiting plates (131) is 2 to 10; The width of the free end of the limiting plate (131) is the same as the width of the fixed end, and the outer side wall of the free end of the limiting plate (131) is an arc-shaped structure.
8. The resin anchor fixing device according to claim 1, characterized in that: The bottom of the base (13) is provided with a groove (132), and the inner diameter of the groove (132) is smaller than the outer diameter of the bottom of the connecting seat (12).
9. The resin anchor fixing device according to claim 1, characterized in that: The axial length of the connecting seat (12) is H1, and the axial length of the fixing seat (11) is H2, wherein 3 / 5≤H1:H2≤4 / 5.
10. The resin anchor fixing device according to claim 5, characterized in that: The axial length of the limiting plate (131) is H3, wherein 1 / 25≤H3:H2≤1 / 15.